std::wcsstr

 

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Null-terminated wide strings

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iswalnum iswalpha iswlower iswupper iswdigit iswxdigit wctype	iswblank (C++11) iswctype iswcntrl iswgraph iswspace iswprint iswpunct
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towlower towupper	towctrans wctrans
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wcstolwcstoll (C++11)   wcstofwcstodwcstold (C++11)(C++11)	wcstoulwcstoull (C++11) wcstoimaxwcstouimax (C++11)(C++11)
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wcslen wcscmp wcscoll wcsncmp wcschr wcsrchr	wcspbrk wcsspn wcscspn wcsstr wcstok
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wcscpy wcsncpy wcsxfrm	wcscat wcsncat
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Types wctrans_t wctype_t wint_t	Macros WCHAR_MIN WCHAR_MAX WEOF

 

Defined in header <cwchar>
constwchar_t* wcsstr(constwchar_t* dest, constwchar_t* src );
wchar_t* wcsstr(       wchar_t* dest, constwchar_t* src );

Finds the first occurrence of the wide string src in the wide string pointed to by dest. The terminating null characters are not compared.

Parameters

dest	-	pointer to the null-terminated wide string to examine
src	-	pointer to the null-terminated wide string to search for

Return value

Pointer to the first character of the found substring in dest, or a null pointer if no such substring is found. If src points to an empty string, dest is returned.

Example

Run this code

#include <clocale>#include <cwchar>#include <iostream>   int main(){wchar_tconst* origin = L"アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ.";wchar_tconst* target = L"ベータ";wchar_tconst* result = origin;   std::setlocale(LC_ALL, "en_US.utf8");std::wcout<< L"Substring to find: \""<< target << L"\"\n"<< L"String to search: \""<< origin << L"\"\n\n";   for(;(result = std::wcsstr(result, target))!= nullptr;++result)std::wcout<< L"Found: \""<< result << L"\"\n";}

Possible output:

Substring to find: "ベータ" String to search: "アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ."   Found: "ベータ, ガンマ, アルファ, ベータ, ガンマ." Found: "ベータ, ガンマ."

See also

find	finds the first occurrence of the given substring (public member function of std::basic_string<CharT,Traits,Allocator>)
strstr	finds the first occurrence of a substring of characters (function)
wcschr	finds the first occurrence of a wide character in a wide string (function)
wcsrchr	finds the last occurrence of a wide character in a wide string (function)
C documentation for wcsstr